I’m changing the coolant along with radiator hoses, thermostat, and heater tees. Just preventative maintenance as I’m replacing the alternator and all the pulleys, I drain the coolant but I haven’t purchase the coolant yet. Is this red or pink ? Looks pink at first then red ? I was going to replace with red coolant but if this is pink I don’t want to mix it, then I’ll put in pink as it was last changed by an indy shop so unknown brands or types. Thanks!